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All results from a given calculation for H2CCCCH2 (Butatriene)

using model chemistry: CID/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at CID/3-21G*
 hartrees
Energy at 0K-153.170964
Energy at 298.15K-153.172883
Nuclear repulsion energy88.928094
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CID/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3198 2976 0.00      
2 Ag 2276 2118 0.00      
3 Ag 1573 1463 0.00      
4 Ag 921 857 0.00      
5 Au 813 757 0.00      
6 B1u 3198 2976 4.30      
7 B1u 1724 1604 5.50      
8 B1u 1509 1404 0.06      
9 B2g 970 903 0.00      
10 B2g 367 341 0.00      
11 B2u 3270 3043 10.72      
12 B2u 1135 1056 0.10      
13 B2u 219 204 7.28      
14 B3g 3270 3043 0.00      
15 B3g 1118 1041 0.00      
16 B3g 317 295 0.00      
17 B3u 977 909 116.89      
18 B3u 199 185 4.85      

Unscaled Zero Point Vibrational Energy (zpe) 13527.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 12587.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CID/3-21G*
ABC
4.91712 0.13299 0.12949

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.636
C2 0.000 0.000 -0.636
C3 0.000 0.000 1.952
C4 0.000 0.000 -1.952
H5 0.000 0.922 2.522
H6 0.000 -0.922 2.522
H7 0.000 0.922 -2.522
H8 0.000 -0.922 -2.522

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8
C11.27131.31612.58742.09932.09933.28913.2891
C21.27132.58741.31613.28913.28912.09932.0993
C31.31612.58743.90351.08401.08404.56744.5674
C42.58741.31613.90354.56744.56741.08401.0840
H52.09933.28911.08404.56741.84445.04325.3699
H62.09933.28911.08404.56741.84445.36995.0432
H73.28912.09934.56741.08405.04325.36991.8444
H83.28912.09934.56741.08405.36995.04321.8444

picture of Butatriene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 H5 121.712
C1 C3 H6 121.712 C2 C1 C3 180.000
C2 C4 H7 121.712 C2 C4 H8 121.712
H5 C3 H6 116.577 H7 C4 H8 116.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability